Constructional material functioning as an expansion joint



Jan. 5, 1932. A. c. FISCHER 1,840,035 I CONSTRUCTIONAL MATERIAL FUNCTIONING AS AN EXPANSION JOINT Filed Dec. 5, 1927 I" I z Patented Jan; 5, 1932 UNITED STATES PATENT OFFICE ALBERT G. FISCH EIBQOI CHICAGO, ILLINOIS, ASSIGNOR TO THE. PHILIP CAREY MANU- FACTURING COMPANY, A CORPORATION OF OHIO CONSTRUCTIONAL MATERIAL FUNGTIONING AS AN EXPANSION JOINT :Original application filed December 5, 1927, SeriaI No. 237,835. Divided and this application December 5, 1927.

This case is a continuation in part of my application Serial No. 472,319, filed May 15,

1921 and granted March 13, 1928 as Patent No. 1,662,567; and it is a-division of my application Serial No. 237,835, filed December 5, 192

This invention relates particularlyto a flexible, board-like structure in contra-distinction to a-rigid, board-like structure, and is composed of vegetable fibers of various kinds,

. bituminous or petroleum waterproofingsaturants' adapted thereto, thus making the material waterproof but not destroying the felt-- ed, matted form, which gives to the expansion joint the inherent power of compression within itself and the power to re-expand of its own accord. The use of such fibrous material prevents breakage of the joint, thus enabling it to be handled in a rough manner and still not be destroyed, whereas all solid bituminous joints, whether provided with felt sides or otherwise, become very brittle in cold weather and a minimum shock often breaks or cracks the entire joint.

Another object of my invention is to mat this fibrous material together in such a manner that it, may present smooth sides to the face of the concrete, and by rolling or forming this matted, fibrous material between r011 ers, making various formations thereon in the shape of elevations and depressions of corrugations against which the concrete is formed. such elevations and corrugations being uniform and oppositely constructed so that the thickness of the expansion joint at any one point is uniform; thus, if a corrugation is elevated on one side the opposite side of that elevation would be depressed on the opposite side of the joint. The purpose of these elevations and depressions primarily is to prevent the joint crevice.

Another object of my invention is to form from creeping out of the filed Serial No. 237,834.

this fibrous material as in mattedvform in a wet condition then run through form presses or suitable machinery to mat the material together. The material should then'preferably be dried, either in warming ovens or otherwlse, and if desired, suitably waterproofed.

Another object of my invention is torein the necessary amount of solid material-- needed for theexpansion joint. Heretofore, the solid bituminous joints when under compression in warm weather have always oozed out of the crevice and have been flattene on the pavement by the passing trafiic, so that the bituminous matter could not et back into the crevice, thus making a efective joint. Byusing a fibrous body of the type described this cannot happen, as the material is both compressible within itself and re-expansive when the pressure is, released, without oozing out of the crevice. The material of the ,present invention may be waterproofed, as stated before, and suitably coated in various ways with a bituminous jacket of considerable thickness to preserve its body and protect itagainst the wear of the trafic. With these and incidental objects in view,

the invention consists ofcertain novel fea-eso tures of construction and combination of designs, and methods of coating or double saturating, the essential elements of which are hereinafter described. W ith'refer'ence to the drawings which actcompany and forms. part of this specifica- Figure 1 represents a section ofconstructi onal material showing. elevations D, depressiorfs E, and irregularly overlapping, foliated mats F.

Figure 2 illustrates a cross section of Fi ure 1, showing depressions E, elevations I) and foliated, irregularly overlapping mats F.

Figure 3 illustrates a cross-section of Figure 4 showing depressions E, elevations D,

and foliated, overlappin mats F. ,7

Figure 4 illustrates a ody section of the structure/shown in cross section Fi re 3, in which D represents the elevations, the deg, 4. Preformed pressions and F the irregularly overlapping, foliated mats.

Figure 5 illustrates the looking or molding of the paving material in the face of the constructional joint without locking the slabs, as shown along the lines H, G representing the concrete, D the elevations and E the depressions.

It can be readily understood that the projections may be only on one face of the constructional material or on both faces. The fibrous material in this invention is waterproofed and consists of irregular, interrupted, overlapping mats .of fibrous material assembled into a block-like structure, said mats having linear fibrous material between the irregularly overlapping mats of fibrous material.

This material may well function as an expansion joint and a waterproofing element between walls where it is desired that an open space be left below the filler, in which case it would be advantageous to have the plastic material of which the walls are formed molded to the face of the constructional material functioning as an expansion joint medium, so that it would be held in place and act as an expansion and contraction means between the walls. There are numerous other places where this material could function as an expansion and contraction joint.

I claim:

1. Preformed constructional material functioning as an expansion joint, comprising a flexible, waterproofed, board-lil e strip embodying in its structure interrupted and substantially parallel mats of vegetable fibers pressed together and irregularly overlapping one another, and spaced rows of elevations embossed on the face of the strip.

2. Preformed constructional material functioning;as an expansion joint. comprising a flexible, waterproofed. boardlike strip made up of interrupted and substantially parallel mats 'of linear fibers of various kinds. said mats irregularly overlapping one another, and spaced rows of elevations embossed on opposite faces of the strip.

3. Preformed constructional. material functioning as an expansion joint, comprising a waterproofed, block-like strip embodying in its structure interrupted and substantially parallel mats of fibrous material irregularly overlapping one another, and spaced parallel rows of elevations embossed on the face of the strip.

constructional material functioning as an expansion joint, comprising'waterproofed, interrupted and substantially parallel mats of fibrous material. in varying dimensions, and finely divided fibrous material, and assembled in irregularly overlapping, block-like strucgure, and

spaced parallel rows of elevations embossed on opposite faces of the structure. 5. Preformed constructional functioning as an expansion joint, comprising a flexible, waterproofed, boardlike strip, embodying in its structure interrupted and substantially parallel mats of fibrous material irregularly overlapping one another and permeated with bituminous material, and spaced rows of elevations embossed on opposite faces.

6. Preformed constructional material comprising a body of waterproofed, felted, fibrous mats, irregularly overlapping each other, compressible within itself andexpansible upon release of such compression, said body'being substantially enclosed in a bituminous jacket of considerable thickness, and spaced rows of. elevations embossed on one face of the formed strip.

7. Preformed constructional material comprising a body of substantial thickness composed of waterproofed, felted, fibrous mats, irregularly overlapping one another and including finely divided fibers, said material being compressible within itself and expansible upon release of such compression, and said body being substantially enclosed in a bituminous jacket of considerable thickness, and spaced rows of elevations alternately dispbsed on opposite faces of the formed strip.

8. Preformed constructional material functioning as an expansion joint, comprising a homogeneous mixture of bituminous material and interrupted and substantially parallel mats of linear fibers of various kinds, said. mats irregularly overlapping one another and formed into strips functioning as an expansion joint, and spaced rows of elevations embossed on one face of the formedstri Si Preformed constructional material functioning as an expansion joint comprising a homogeneous mixture of bituminous material, interrupted and substantially parallel mats of fibrous material in varying dimensions, and finally divided fibrous material, assembled in irregularly overlapping relation into strips functioning as expansion means, and spaced rows of elevations alternately disposed on opposite faces of the formed strip. I

10'. A paving construction comprising a plurality of rigid sections laid end to end in spaced relation and expansion joint strips inserted between the sections, said strips embodying a waterproofed structure having spaced rows of elevations embossed on at least one face for engaging with the sections.-

11. A paving construction comprising. a

material plurality of rigid sections laid end to end in spaced relation and expansion jointstrips inserted between the sections, said strips be mg of reenforced bituminous composition and embossed with spaced rows of elevations engaging with the sections.

12. A preformed expansion joint comprising a flexible, waterproofed board-like strip of matted fibers embossed on its surface with spewed rows of elevations.

Signed at Chicago, Illinois, this 2nd day of December, 1927.

ALBERT G. FISCI-HJR. 

